The purple nine-story pagoda is dark purple in color, and people mainly eat its leaves and tender stems. It is also placed in fried foods, soups and other delicacies.

The name of the nine-story tower in the supermarket is basil, so it is sold in general supermarkets. If there is no nine-story tower in the ordinary supermarket, you can also go to the dry spice area in the imported goods store to have a look, because the nine-story tower is a variety introduced from abroad.